Questions tagged [audio]

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9 views

Audio volume only decreases for a few seconds

When I click on “sound” settings, I can see that I can adjust volume from 1 to for example 0.200. However, when I do that, it only remains 0.200 for one or a few frames max and then returns back to 1....
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0answers
16 views

Invalid audio strips with negative length

When I add audio strips, they are inverted and they don't play. They also are unable to move with the mouse or with the G button. This audio plays successfully if I open them not in Blender. How can I ...
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30 views

Audio-reactive 3D

I recently found out about Blender. I was wondering if it would be possible to create an audio-reactive/responsive 3D object which moves (or does something) in a particular way when a sound is ...
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1answer
19 views

sound control smoke particle

I try to create a music, and I would like to do a simple animation , just a black background with some smoke on the front that would be animated following the sound of the track, I have no idea how ...
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1answer
24 views

Using 'Bake Sound to F-Curve' to Drive Animation — Invalid Python Expression

I am trying to use sound to drive my animation like in the second section of this tutorial (https://www.youtube.com/watch?v=OAes-ITNaGA&ab_channel=quollism) I have created a utility bone with '...
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1answer
24 views

How to keyframe the volume of a speaker with python

one can set the keyframe of an objects location with: bpy.context.object.keyframe_insert(data_path="location", frame=1) and it will set the keyframe of ...
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0answers
31 views

VSE: Why is the first part of my sound cut off?

In track 1 of the Video Sequence Editor, I inserted the same piece of audio several times: But when I render out the video, the sound byte sounds different on every occurence. When I extract the ...
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0answers
12 views

Why doesn't custom fps work? [duplicate]

AV sync is turned on. Still the sound moves out of sync after render. The video I'm trying to edit has a strange fps: 30.159052 when I view the codec information in VLC media player. I'm guessing ...
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1answer
38 views

Audio sync issues with speed control, pitch and keyframes

I have a video which I want to fast-forward during some sections. I can accomplish this by adding speed control, keyframing the speed factor, and for audio keyframing the pitch. This works well if I ...
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15 views

Problem about a code. This the code is crash (audio visualization)

I have problem. I write a code to create visualization music, but this the code is crash everytime, when I run it. I need help ! What is going on ? Code : ...
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2answers
26 views

No animation in Curves on using Bake sound to fcurves

In Blender2.9 , on adding location drivers to the origin of a Curve, there is no animation eventhough the location values are generated by baking sound to fcurves. ...
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1answer
16 views

Blender Shifts Audio Sometimes

I apologize for the lack of information; I am new to Blender and am unsure why this is happening. I recently started using Blender for video editing as I wanted an open-source video editor. In general,...
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30 views

How “Bake sound to F-Curves” works?

Good morning. I would like to know how the function "Bake sound to F-Curves" works (Graph editor) ? Is this the function use the Fourier analysis (Fast Fourier Transform, Short-Time Fourier ...
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42 views

Blender 2.8 not rendering video

I am splicing several clips together with audio. Everything plays fine in preview. I have set the start and end frames, changed the format to ffmpeg, container mp5, codec h264, audio codec aac, ...
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1answer
15 views

Does changing the fps change the speed of the animation? [duplicate]

I had created animation in blender 2.76 with sound effects, at 30 fps, and rendered it at 60 fps. However, when I saw the rendered result, the video was faster than the sound. Does increasing the fps ...
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0answers
15 views

How to make a particle independant from the others after being generated?

I'd like to emit particles from a mesh according to a sound. It works but EVERY generated particle react to the sound, not only the on who is currently being generated. I hope it's clear, thank you ...
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0answers
15 views

Chroma key removal removes audio from rendered video

I am trying to follow a tutorial to remove chroma key from my video and it works well for the video part. But the final rendered output is missing the audio. Not sure if it is the intended way for it ...
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0answers
64 views

How to smooth out baked sound to f curves?

Ok, I have several scaling animations synced to audio via "Bake sound to f curves" and I've applied an envelope modifier to control the max value the curve can hit. The curve looks like this ...
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0answers
47 views

Audio not working for iOS devices

After rendering an animation, the audio is only reproduced on Android devices, for iOS the video stay muted. My audio files are on .wav format and render settings are as follow: someone has gone ...
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0answers
19 views

after editing play back problems

I'm new to Blender and have to make instructional videos for work. I use CamStudio for the screen captures around four per finished video. I use Blender 2.8 and 2.9 for editing. There are a lot of ...
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0answers
18 views

Are the audio effects of the Blender movies available to creat dubs in diferent languages?

I would like to dub a few of the Blender movies, I was mainly thinking about Agent 327, but the other movies could be interesting too. Are the different audio lines from the movie available in the ...
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0answers
15 views

Workflow: render an animation with a soundtrack in one go, or render the animation then import it as a strip in the VSE?

I am creating an animation with a soundtrack. I have a 3D window open with a timeline, and a VSE window open with the audio synced so I can time the animation with the sound. Can I render the finished ...
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0answers
132 views

Blender audio visualization - waveform line?

Alright, followed all the relevant tutorials on Blender audio visualizations but they all involve either scaling/distorting objects with f curves or the bars type visual like this - https://www....
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0answers
16 views

How to add audio keyframes in Blender 2.90? It keeps ignoring the volume level changes

I've just got to grips with using blender for the first time and I got to the audio and in the keyframes it wont let me change the volume for fade in and fade out. It just remains the same default ...
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2answers
47 views

Is it possible to use object motion to drive audio properties in Blender?

I've seen plenty of examples on how to drive motion of objects in Blender with audio, but I'm trying to do the opposite - drive audio properties based on the motion of objects. More specifically, I'd ...
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0answers
16 views

How do I set the type of an NlaStrip?

I'm trying to add a speaker object with an attached NlaStrip in code, like the add_speaker operation does, but when I use ...
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0answers
28 views

Audio missing after rendering video

Every time I render my video's, the audio goes missing. I don't hear any audio during editing or post render. I've put Audio Codec to 'ACC' or 'MP3', so I don't understand why this is an issue. Thanks....
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1answer
17 views

Unable to set number of output channels for Audio Render

I can't seem to find where to set the number of output channels for an Audio Render. I can control the output format for live playback in preferences but this seems to have no effect on audio ...
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0answers
18 views

How can i mute video

I have 2 video files. Drag in video Editing. 1 file is my model animation, another file is download from youtube (for background music) it has video+music. I want to mute the video of the file which ...
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0answers
25 views

Audio moved while scrubbing

I'm new to Blender but have some experience with 3D animation. Problem: I'm trying to make a lip sync with a 3d character to a piece of audio as a test for a Minecraft video. The audio starts "...
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0answers
35 views

Speaker object doesn't create sound in particle system

I'm trying to get the speaker object to work with a particle system so it can create sound effects for example set up a plane to emit multiple speaker objects and each speaker would create sounds in ...
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0answers
7 views

Audio doesn't play after transferring blender file

To make it short, the audio on my project isn't playing. When I open up another project and insert audio, it plays perfectly. So I feel like this is more of a project problem than a setting problem. I ...
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0answers
21 views

blender audio frequency detectionrange limit 1000000khz

i want to use blender to detect frequency, but it only has a limit, i need it to detect frequencies of upto penta herdz or above. no limit. the frequencies are usually used for audio visualization and ...
1
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1answer
46 views

VSE: No Audio In Rendered File, Mixdown causes crash

Ever since switching from Windows to Linux, I have been unable to render any videos in Blender's VSE with the audio tracks. The audio codec is selected in the scene tab: However after rendering with <...
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0answers
15 views

how do i fix this running problem [duplicate]

Every time i get into blender it does this and then it kicks me out
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1answer
240 views

How to change range of “bake sound to f curves”?

Alright, Im trying to modify the "damp" parameter of a particle system in accordance with the beats of an audio file. So far, I "insert keyframe" on the damp parameter, go to F ...
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1answer
110 views

Workflow for adding audio to scenes and combining them in the VSE

I've been trying to experiment with a workflow for putting all animation, editing, and post-processing into one blender file: 0000_Master combines clips of all ...
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0answers
70 views

(VSE) How do I speed up audio by more than 10 times?

I'm trying to speed up some video by a factor of 20, audio included. The video strip is easy: I just add a speed control transform strip. The audio part isn't as easy. Transform strips don't work on ...
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0answers
19 views

Blender is outputting blank screen video with no audio

I am working on a project that has multiple simultaneous sound files and image video files layered over each other, I'm not sure if this effects what I have to do to output. When I try to render, the ...
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0answers
21 views

Audio and Sequence Strips in Video editor

I created scene strips synced to respective audio. Then I created a seperate strip only for video editing and imported the said scene strips to the same. But these scene strips are not importing with ...
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1answer
212 views

Grease Pencil to Video Sequencer

I imported sound in video editor, cut it as needed and did animatics in sync to the sound using 2D animation tab. But when I render the same my output is a blank frame. Possibly because I am not able ...
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1answer
18 views

JackAudio disabled in Blender's OSX official release?

I need to use JACK as Blender's audio device, mostly to sync with Ardour via Jack Transport. I've done this in linux but in OSx (10.13) Jack doesn't show in the audio devices list. bpy.app....
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0answers
26 views

How to keep audio and video synced rendering an animation? [duplicate]

I am doing a voice over for my video. It’s suppose to be my first dev log. So my audio and video is completely separate. Why does the video render faster than the audio, how do I fix this? I am using ...
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0answers
15 views

Video Editor, Why there is audio in gap area?

I'm new in blender video editor. I have seen some tutorials about blender's video editor and I have applied it on a test video clip. But I saw a strange thing: there is some audio in gap area. There ...
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1answer
37 views

Display Audio Meters in Video Sequence Editor?

Is there any way to display audio meters in the Video Sequence Editor? I mean something like this: Pretty much every NLE has one, but I'm unable to find one in Blender's VSE.
2
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1answer
40 views

Editing phone videos with blender, audio is async?

I edited a video from my phone with Blender (changed colors + added text synced with the audio). But then I saw that later in the video, the text is not synced with the audio (for example a text comes ...
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0answers
31 views

How do I control type of audio from Render Audio?

With my audio render tests, I found that using the default settings, Blender renders at least Stereo sound. I don't have a way to test if Blender rendered 5.1 or 7.1 surround sound. How do I confirm ...
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1answer
52 views

How do we use Stereo audio with the AAC codec?

When rendering out a video in Blender 2.8, 2.81, and 2.82, the audio gets mixed down to mono despite being stereo when previewing, and is also about 200% the volume of the preview. There are no ...
1
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1answer
45 views

Audio to affect Material noise / texture values

I am attempting to make a procedural material and have audio files affect different elements of the material. Examples.. I would like to have audio.01 to animate the scale of a noise texture node. ...
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1answer
34 views

Unable to render animation with audio

I'm completely stuck on trying to render with audio. I've made sure the audio codec is selected alongside FFMPEG, I've added the audio file in the video editor and I can hear the music when playing ...

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